Provided are: a polyolefin resin composition which has excellent antistatic properties with sufficient persistence and wiping resistance but without impairment of the intrinsic mechanical properties of a resin; and an automotive interior/exterior material containing the same. The polyolefin resin composition contains: 50 to 90 parts by mass of a polyolefin resin; 3 to 40 parts by mass of a thermoplastic elastomer; and 3 to 30 parts by mass of a filler, the polyolefin resin composition further containing an antistatic agent composed of a polymer compound (E) in an amount of 3 to 20 parts by mass with respect to a total amount of 100 parts by mass of the polyolefin resin, the thermoplastic elastomer and the filler, wherein the polymer compound (E) has a structure in which a diol, an aliphatic dicarboxylic acid, an aromatic dicarboxylic acid, a compound (B) which contains at least one group represented by the formula (I) and has hydroxyl groups at both ends, and an epoxy compound (D) having two or more epoxy groups are bound via ester bonds: —CH2—CH2—O   (1)